3387972778 has 8 divisors (see below), whose sum is σ = 5151575268. Its totient is φ = 1670781024.

The previous prime is 3387972739. The next prime is 3387972781. The reversal of 3387972778 is 8772797833.

3387972778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3263494129 + 124478649 = 57127^2 + 11157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3387972778² = 22956719088938074568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11602501 + ... + 11602792.

Almost surely, 2^3387972778 is an apocalyptic number.

3387972778 is a deficient number, since it is larger than the sum of its proper divisors (1763602490).

3387972778 is a wasteful number, since it uses less digits than its factorization.

3387972778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23205368.

The product of its digits is 24893568, while the sum is 61.

The square root of 3387972778 is about 58206.2950032039. The cubic root of 3387972778 is about 1501.9194358334.

The spelling of 3387972778 in words is "three billion, three hundred eighty-seven million, nine hundred seventy-two thousand, seven hundred seventy-eight".